update py-elephant to 0.14.0

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!462

feat(bss2): update software (fix python install paths)

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!460

This incorporates changes in the BrainScaleS-2 repos (touch almost
all repositories) to install Python libraries (incl. CPython extension
libraries) into some local site-packages path, instead of a `lib/` path.

feat(neuron): Use default install path for Python libs

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!429

add BSC's hsmcompute site-specific config

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!459

Adding BSC's hsmcompute site config spack.yaml parameters

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!445

Added G100 site-config files (tested on version 23.02)

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!455

fix wf notebook tests

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!453

Updated the version of multi-area-model to be @v1.1.1

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!456

Update NESTML dependency versions

See merge request technical-coordination/project-internal/devops/platform/ebrains-spack-builds!448